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This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.

Chemical and radiological sample results

MS0390007 , Crooked Creek W/A - North

33 of the 71 analytes this system has been tested for have been detected at least once, across 190 samples on record.

The other 38 were tested for and never found. An analyte is counted here if any result on record measured it, so this covers the whole history and not the samples listed below.

Across all 190 samples on record, detections range from October 1, 2003 to February 9, 2026. These figures cover the whole record.

What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.

What has been detected, ever

Every analyte measured above its reporting level at any point in this system’s record, most often detected first. This is not limited to the samples listed below.

Every analyte ever detected for Crooked Creek W/A - North, with how many results found it and when it was first and last detected. Covers the whole record, not only the samples listed below.
Analyte Kind Detected in First detected Last detected
Copper, Free 1022 Inorganic Chemical 96 of 96 results Aug 4, 2004 Sep 13, 2023
Lead 1030 Inorganic Chemical 51 of 97 results Aug 4, 2004 Sep 13, 2023
Nitrate-Nitrite 1038 Inorganic Chemical 21 of 23 results May 24, 2004 Feb 9, 2026
Nitrate 1040 Inorganic Chemical 21 of 23 results May 24, 2004 Feb 9, 2026
Barium 1010 Inorganic Chemical 10 of 10 results Oct 1, 2003 Mar 11, 2025
Sodium 1052 Inorganic Chemical 5 of 5 results Jun 10, 2010 Feb 11, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 14, 2011 Jul 19, 2012
TTHM 2950 Organic Chemical 4 of 19 results Jun 28, 2004 Aug 14, 2023
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 3 of 19 results Sep 28, 2009 Jun 23, 2020
Monochloroacetic Acid 2450 Organic Chemical 2 of 16 results Apr 22, 2019 Jun 23, 2020
Calcium 1016 Inorganic Chemical 2 of 2 results Jun 10, 2010 Jun 10, 2010
Chloride 1017 Inorganic Chemical 2 of 2 results Jun 10, 2010 Jun 10, 2010
Magnesium 1031 Inorganic Chemical 2 of 2 results Jun 10, 2010 Jun 10, 2010
Potassium 1042 Inorganic Chemical 2 of 2 results Jun 10, 2010 Jun 10, 2010
Sulfate 1055 Inorganic Chemical 2 of 4 results Jun 10, 2010 Jun 10, 2010
Residue, Total, Filterable 1057 Water Quality 2 of 2 results Jun 10, 2010 Jun 10, 2010
Hardness, Total (As Caco3) 1915 Water Quality 2 of 2 results Jun 10, 2010 Jun 10, 2010
Alkalinity, Total 1927 Water Quality 2 of 2 results Jun 10, 2010 Jun 10, 2010
Calculated Sodium NACA Water Quality 2 of 2 results Jun 10, 2010 Jun 10, 2010
PH, Field Result PHFD Water Quality 2 of 2 results Jun 10, 2010 Jun 10, 2010
Chloroform 2941 Organic Chemical 2 of 15 results Aug 15, 2007 Sep 28, 2009
Fluoride 1025 Inorganic Chemical 1 of 10 results Apr 1, 2019 Apr 1, 2019
Manganese 1032 Inorganic Chemical 1 of 1 result Jun 10, 2010 Jun 10, 2010
Carbon Dioxide 1901 Water Quality 1 of 1 result Jun 10, 2010 Jun 10, 2010
Color 1905 Water Quality 1 of 1 result Jun 10, 2010 Jun 10, 2010
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result Jun 10, 2010 Jun 10, 2010
Bromodichloromethane 2943 Organic Chemical 1 of 15 results Sep 28, 2009 Sep 28, 2009
Dibromochloromethane 2944 Organic Chemical 1 of 15 results Sep 28, 2009 Sep 28, 2009
Cadmium 1015 Inorganic Chemical 1 of 10 results Mar 28, 2005 Mar 28, 2005
Chromium 1020 Inorganic Chemical 1 of 10 results Mar 28, 2005 Mar 28, 2005
Dichloromethane 2964 Organic Chemical 1 of 7 results Aug 9, 2004 Aug 9, 2004
Nitrite 1041 Inorganic Chemical 1 of 23 results May 24, 2004 May 24, 2004
Mercury 1035 Inorganic Chemical 1 of 10 results Oct 1, 2003 Oct 1, 2003

No date range is applied: this list draws on every sample on record. Show the last two years only.

The most recent samples, result by result

The table below lists 101–110 of 190 samples, newest first — collected September 28, 2009 to February 27, 2012. The summary above covers all 190.

54 results from the 10 samples listed here: 34 detected, 20 not detected. Across the whole record it is 252 of 765. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Chemical and radiological sample results for Crooked Creek W/A - North, every result from 101 to 110 of 190 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Feb 27, 2012 02:22
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120228-018NI
Laboratory
MSDH Lab
0.33 mg/l , sample collected Feb 27, 2012 02:22, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
0.33 mg/l , sample collected Feb 27, 2012 02:22, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 27, 2012 02:22, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2012 – Dec 31, 2012
Collected
Feb 16, 2012 13:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120217-034
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected Feb 16, 2012 13:00, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.579 pci/l Minimum Reporting Level , sample collected Feb 16, 2012 13:00, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.579 pci/l Minimum Reporting Level , sample collected Feb 16, 2012 13:00, sampling point TF080 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.43 pci/l Minimum Reporting Level , sample collected Feb 16, 2012 13:00, sampling point TF080 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Feb 16, 2012 13:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120217-034RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 16, 2012 13:00, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Dec 14, 2011 13:48
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
111215-012
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected Dec 14, 2011 13:48, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.579 pci/l Minimum Reporting Level , sample collected Dec 14, 2011 13:48, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.579 pci/l Minimum Reporting Level , sample collected Dec 14, 2011 13:48, sampling point TF080 Radium-226 4020 EPA method 903.1 Oct 1, 2011 – Dec 31, 2011
Not detected below 0.43 pci/l Minimum Reporting Level , sample collected Dec 14, 2011 13:48, sampling point TF080 Radium-228 4030 EPA method 904.0 Oct 1, 2011 – Dec 31, 2011
Collected
Feb 23, 2011
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
110224-074NI
Laboratory
MSDH Lab
0.42 mg/l , sample collected Feb 23, 2011, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
0.42 mg/l , sample collected Feb 23, 2011, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 23, 2011, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Collected
Aug 11, 2010
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
100812-090NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Aug 11, 2010, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Aug 11, 2010, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Aug 11, 2010, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Collected
Jun 10, 2010
Sampling point
WL002 Well W002
Sample type
Routine
Lab sample
100611-004PC
Laboratory
MSDH Lab
0.802 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL002 Calcium 1016 EPA method 200.8 Not recorded
2.37 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL002 Chloride 1017 EPA method 300.0 Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 10, 2010, sampling point WL002 Iron 1028 EPA method 200.8 Not recorded
0.336 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL002 Magnesium 1031 EPA method 200.8 Not recorded
0.336 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL002 Manganese 1032 EPA method 200.8 Not recorded
0.459 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL002 Potassium 1042 EPA method 200.8 Not recorded
2.25 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL002 Sodium 1052 EPA method 200.8 Not recorded
0.17 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL002 Sulfate 1055 EPA method 300.0 Not recorded
9 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL002 Residue, Total, Filterable 1057 EPA method CALCUL LAB Not recorded
20 units The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL002 Color 1905 EPA method 2120B Not recorded
3.2 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL002 Hardness, Total (As Caco3) 1915 EPA method CALCUL LAB Not recorded
5.21 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL002 Alkalinity, Total 1927 EPA method 2320B Not recorded
0.09 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL002 Iron, Field Result FEFD EPA method 3500AL-D Not recorded
1.8 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL002 Calculated Sodium NACA EPA method CALCUL LAB Not recorded
7.5 units The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL002 PH, Field Result PHFD EPA method 3500AL-D Not recorded
Collected
Jun 10, 2010
Sampling point
WL001 Well W001
Sample type
Routine
Lab sample
100611-001PC
Laboratory
MSDH Lab
0.921 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL001 Calcium 1016 EPA method 200.8 Not recorded
2.88 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL001 Chloride 1017 EPA method 300.0 Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 10, 2010, sampling point WL001 Iron 1028 EPA method 200.8 Not recorded
0.001 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL001 Lead 1030 EPA method 200.8 Not recorded
0.408 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL001 Magnesium 1031 EPA method 200.8 Not recorded
0.42 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL001 Potassium 1042 EPA method 200.8 Not recorded
3 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL001 Sodium 1052 EPA method 200.8 Not recorded
0.14 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL001 Sulfate 1055 EPA method 300.0 Not recorded
11 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL001 Residue, Total, Filterable 1057 EPA method CALCUL LAB Not recorded
5 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL001 Carbon Dioxide 1901 EPA method CALCUL LAB Not recorded
3.9 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL001 Hardness, Total (As Caco3) 1915 EPA method CALCUL LAB Not recorded
4.83 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL001 Alkalinity, Total 1927 EPA method 2320B Not recorded
2.2 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL001 Calculated Sodium NACA EPA method CALCUL LAB Not recorded
6.3 units The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 10, 2010, sampling point WL001 PH, Field Result PHFD EPA method 3500AL-D Not recorded
Collected
Sep 28, 2009
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
090929-049CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 28, 2009, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Sep 28, 2009
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
090929-021HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Sep 28, 2009, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 28, 2009, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 28, 2009, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 28, 2009, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 28, 2009, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Sep 28, 2009, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2008 – Dec 31, 2010

Routine (10).